Spring air gun



AOct 9, 192s.

1,686,752 F. LEFEVER SPRING AIR GUN Filed March 9. 1925 4 Cha/...sfcvr@and WM5; 4 Guy-mp Patented Oct. 9, 1928.

UNITED STA TES GHAR'LES'E. LEFEVER, 0F PLYMOUTH,MIGHIGAN, ASSIGNOR TODAISY MANUFAC- yTU'fttllr'COI/IEAETY, OF PLYMOUTH, MICHIGAN, ACORPORATION OF MICHIGAN.

sPRiNG AIR GUN.

AApplication led March The invention relates to spring air guns of thattype which simulate the appearance' of the so-called pump gun and inwhich the.

the danger of catching the vhand of the opera-r tor between the 'linksand the barrel. It is` the object of the present invention to avoid thepossibility vof such anaccident, and to this end the invention consistsin the construction as hereinafter setxforth AIn the drawings: 4 s

Figure l is a sectional elevation ofthe gun showing the Vspring inVreleased position; Figure 2 is a Vsimilar view with the pump handleadjusted to a positionV for engaging the sear with the plunger; Y l

Figure 3 isa similar view 4showing the spring compressed andthe parts inposition ready for ring; f Figure 4 is a cross `section Online 4-4 ofFigure l; and A f Figures 5, 6 and are perspective views of some of theparts detached.

A is the outer or so-called false barrel, a portion of which forms theair compression cylinder B containing the plunger'or .piston C, thespring D and plunger shank E. iF is the true barrel within the fforwardpor tion of the barrel A. with its rear end supported in the abutmentGr, against which the plunger strikes when the gun is fired. H is theframe which Vconnectsthe barrel A with Vthe stock l and containsthe'triggerJ and other mechanism. This mechanism comprises the pumphandle K connected: to a'swinging link L, which in turn is connected tothe lever MV fulcrumed at N in ,thel frame. The forward end of the linkLslidably engages a i grooved guideway O on thebottom of the barrelandin the normal position of .parts the handle K is drawn to the rearand the link L and lever M are folded to lie within the frame H, asshownin Figure 1. The lever M has conneetedthereto allink Pextendingrearward therefrom and connected by a pin Q with the sear R. The pin Q,is guided for n 9, 1925. seriai No. 14,261.

longitudinal movement preferably by engaging slots Sin opposite sides ofthe frame, which slots are concealed by overlapping portions of thebarrel A. Thus when the handle K is moved forward and the link L andlever r M are swung into the position shown inFigure 2, the link'P andsear 'R will be' `drawn forward until the latter latches into engagementwith a notch T.v at the rear end of the plunger shankE. The handle K maythen be drawn rearward again and in so doing will force the link P, searR, shank E and plunger C rearward, compressing the spring D, the rearend of which abuts against the frame H. .The movement is continuedfuntil theV Ipivot pin P connecting the link F toA thel lever kM passesslightly beyond the center line, connecting the fulcrum pin-M and thepin Q for the sear, thereby locking thelever mecha- -nism'against anyreaction from the spring. However, the sear R, which is held in normalposition by a small spring U, extends into operative vrelation to afinger J on the trigger J so that the pulling of said finger willdisengage the sear from the notch Tand permit the spring D to force theplunger C forward. y f l Withthe construction as just'described, it willbe noted that in the position of parts shown in Figure 1 the spring doesnot react against the lever mechanism, so that the handleK may be freelymoved forward to engage the-*sear withthe notch T. rThe rearwardmovement of the handle K is opposedk by the p reactionof the spring D,-but the construction of the klevers is suchthat the power is pro-`Vgressively increased as the link P assumes theposition shown inFigure3. lIn this po sition the rlink L and leverM are both fold- Ved withinthe frame H and the reaction of the spring D tends tohold them invthisfolded position'. Thus should the sear be accidentally disengaged, itcan have'no detrimental effect, but will merely permit. Athe forwardvmovement oftheplun'ger C.- If the operators 'hand'should slip while heis actuating the handle K to compress the' spring, no injury couldresult for the reaction of thev spring will merely throw the leversVoutward from the frame. Moreover the spring will be fullyl expandedbefore the .handle K reaches itsr forward position and in this positionthere is still sufficient angularity in the link L and lever M to holdthese parts out of contact with the barrel.v y 110 spo lVhat I claimasmy invention is:

l. In a spring air gun, the combination with a barrel, a spring actuatedplunger therein, a member movable with said plunger and a searengageable with said member for holding the plunger in the compressedposition of the springof a handle slidable onsaid barrel normallyoccupying its rear position thereon, and levers connected to said handlenormally folded, ,adaptedfto be straightened by the forward movement ofsaid handle to engage the sear with said member and upon the rearmovement of said handle to compress the spring.

2. In a springair gun, the combination with a barrel, a spring actuatedplunger therein, of compression mechanism for said spring includingnormally folded levers, a travelling sear actuated by the unfolding ofsaid levers to engage said springactuated plunger and upon the refoldingof said levers to compress said spring, and a trigger in operativerelation to said sear in the compressed position of the spring. i

3. In a spring air gun, the combination with a barrel, a spring actuatedplunger ltherein and a frame connected with said barrel, of springcompressing levers normally in folded position within said frame, ahandle connected withone of said levers slidable on said barrel to..cause the unfolding` of the levers, a sear connected to said leversactuated by the forward movement of vsaid handle to engage said plungerand by the rear movement thereof tov compress the spring, and a triggerin operative relation to saidv sear in the rear position thereof todisengage the same from said plunger. f

4. In a spring air gun, the combination Vwith a barrel, a springactuated plunger therein, a frame connected to said barrel, of springcompressing levers normally in folded position within said frame, ahandle connected to one lof said levers slidable along said barrel tounfoldthe levers, a sear, a link connecting said sear with one of saidlevers, where bythe forward movement of said lever said sear is engagedwith said spring actuated plunger and in the rear movement of the handlethe spring is compressed, and a trigger within said frame arranged to bein operative relation vto said sear in the compressed positionv of thesprinO. i Y

V5. In a spring air gun, the combination with. a barrel, a plungertherein having a rearwardly extending shank, a spring surrounding saidshank and an abutment for said spring through which said shank projects,of a frame, a toggle lever normally folded within said frame, a searslidable within said frame, a link connecting said toggle with said searand actuated by the unfolding of the toggle to engage said sear withsaid shank'and by the refolding thereof to compress the spring, and atrigger for disengaging said sear from said plunger.

6. In a spring air gun, the combination with a barrel, a plungertherein, and a spring compressible by retraction of said plunger, ofy

a mechanism for compressing said spring, establishing an inherent lockupon said mechanism in the compressed position ofthe spring, the springacting to maintain the compressive position of said mechanism.'

7. In a spring air gun, the combination with a barrel, a plungertherein, and a spring compressible by retraction of said plunger, of apair of levers adapted to be folded upon each other, an actuatingmembervconnected to one of said levers, and means connected to the otherlever for retracting said plunger, as the levers are folded said springre-a-cting through said connecting means upon said levers to maintainthem folded.

8. In a spring air gun, the combination with a barreha plunger therein,and a spring compressible by retraction of said plunger, of acompression mechanism for said ,spring including a pairfof leversmovable fromand extended to a folded position, an actuating memberconnected to one of said levers and a member connected tothe other leverengageable with said plunger in the extended position of the levers, andmovable by foldingv of the levers to retract the plunger, said springacting in the retracted position of thev plunger to resist unfolding ofthe levers.

9. In a spring air gun, thelcombination with a barrel, and a springactuated lplunger therein, of a trigger, a sear forwardly movable toengage the plunger and rearwardly movable to retract the plunger andcompress said spring, and releasable from the plunger by the trigger inits retracted position, and a lever mechanism controlling travel of `thesear, and establishing an inherent lock upon said mechanism in theretracted the sear to maintain said position. Y i

In testimony whereof I affix my signature.

Y CHARLES RLEFEVER.

position of

